@@ -398,10 +398,29 @@
/* RXPBSIZE default value for Express and BMC buffer */
#define IGC_RXPBSIZE_EXP_BMC_DEFAULT 0x000000A2
-#define IGC_TXPBSIZE_DEFAULT 0x04000014 /* TXPBSIZE default */
#define IGC_RXPBS_CFG_TS_EN 0x80000000 /* Timestamp in Rx buffer */
-#define IGC_TXPBSIZE_TSN 0x04145145 /* 5k bytes buffer for each queue */
+/* Mask for TX packet buffer size */
+#define IGC_TXPB0SIZE_MASK GENMASK(5, 0)
+#define IGC_TXPB1SIZE_MASK GENMASK(11, 6)
+#define IGC_TXPB2SIZE_MASK GENMASK(17, 12)
+#define IGC_TXPB3SIZE_MASK GENMASK(23, 18)
+/* Mask for OS to BMC packet buffer size */
+#define IGC_OS2BMCPBSIZE_MASK GENMASK(29, 24)
+/* TX Packet buffer size in KB */
+#define IGC_TXPB0SIZE(x) FIELD_PREP(IGC_TXPB0SIZE_MASK, (x))
+#define IGC_TXPB1SIZE(x) FIELD_PREP(IGC_TXPB1SIZE_MASK, (x))
+#define IGC_TXPB2SIZE(x) FIELD_PREP(IGC_TXPB2SIZE_MASK, (x))
+#define IGC_TXPB3SIZE(x) FIELD_PREP(IGC_TXPB3SIZE_MASK, (x))
+/* OS to BMC packet buffer size in KB */
+#define IGC_OS2BMCPBSIZE(x) FIELD_PREP(IGC_OS2BMCPBSIZE_MASK, (x))
+/* Default value following I225/I226 SW User Manual Section 8.3.2 */
+#define IGC_TXPBSIZE_DEFAULT ( \
+ IGC_TXPB0SIZE(20) | IGC_TXPB1SIZE(0) | IGC_TXPB2SIZE(0) | \
+ IGC_TXPB3SIZE(0) | IGC_OS2BMCPBSIZE(4))
+#define IGC_TXPBSIZE_TSN ( \
+ IGC_TXPB0SIZE(5) | IGC_TXPB1SIZE(5) | IGC_TXPB2SIZE(5) | \
+ IGC_TXPB3SIZE(5) | IGC_OS2BMCPBSIZE(4))
#define IGC_DTXMXPKTSZ_TSN 0x19 /* 1600 bytes of max TX DMA packet size */
#define IGC_DTXMXPKTSZ_DEFAULT 0x98 /* 9728-byte Jumbo frames */